EP 2812662 A4 20150923 - VSP SYSTEMS AND METHODS REPRESENTING SURVEY DATA AS PARAMETERIZED COMPRESSION, SHEAR, AND DISPERSIVE WAVE FIELDS
Title (en)
VSP SYSTEMS AND METHODS REPRESENTING SURVEY DATA AS PARAMETERIZED COMPRESSION, SHEAR, AND DISPERSIVE WAVE FIELDS
Title (de)
VSP-SYSTEME UND -VERFAHREN ZUR DARSTELLUNG VON ÜBERWACHUNGSDATEN ALS WELLENFELDER MIT PARAMETRISIERTER KOMPRESSION, SCHERUNG UND DISPERSION
Title (fr)
SYSTÈMES ET PROCÉDÉS DE PROFIL SISMIQUE VERTICAL (PSV) REPRÉSENTANT DES DONNÉES DE PROSPECTION EN TANT QUE COMPRESSION, CISAILLEMENT ET CHAMPS D'ONDES DISPERSIFS PARAMÉTRISÉS
Publication
Application
Priority
US 2012031788 W 20120402
Abstract (en)
[origin: WO2013151524A1] Disclosed vertical seismic profiling (VSP) survey systems and method acquire multi-component signal data and represent the signal data in terms of a combination of parameterized compression, shear, and dispersive wavefields. Multiples of each wavefield type may be included, e.g., to separate upgoing and downgoing wavefield components. A nonlinear optimization is employed to concurrently estimate an incidence angle and a slowness value for each wavefield. For the dispersive wavefield(s), the slowness may be parameterized in terms of a phase slowness and a group slowness with respect to a central wave frequency. The parameter values may vary as a function of depth.
IPC 8 full level
G01V 1/42 (2006.01)
CPC (source: EP US)
G01V 1/16 (2013.01 - US); G01V 1/282 (2013.01 - US); G01V 1/284 (2013.01 - EP US); G01V 1/345 (2013.01 - US); G01V 1/40 (2013.01 - US); G01V 1/42 (2013.01 - EP US); G01V 11/00 (2013.01 - EP US); G01V 2210/161 (2013.01 - EP US); G01V 2210/626 (2013.01 - EP US)
Citation (search report)
- [Y] US 2003195705 A1 20031016 - LEANEY SCOTT [GB]
- [A] US 4809239 A 19890228 - ESMERSOY CENGIZ [US]
- [XY] US 2005152220 A1 20050714 - KRITSKI ALEXANDER [NO], et al
- [Y] R. MJELDE: "REFLECTION AND POLARIZATION OF TUBE WAVES AS SEEN IN VSP DATA", GEOPHYSICAL PROSPECTING, vol. 40, no. 6, 1 August 1992 (1992-08-01), pages 605 - 617, XP055206411, ISSN: 0016-8025, DOI: 10.1111/j.1365-2478.1992.tb00544.x
- [IY] ERIC BLIAS: "New VSP Wavefield Separation Method. Wave-by-Wave Extraction", CSEG NATIONAL CONVENTION - EVOLVING GEOPHYSICS THROUGH INNOVATION, 1 June 2005 (2005-06-01), pages 351 - 354, XP055206535, Retrieved from the Internet <URL:http://cseg.ca/assets/files/resources/abstracts/2005/005S0112-Blias_E_Abstract_NewVSP.pdf> [retrieved on 20150806]
- [A] CHUNLING WU ET AL: "Borehole seismic modeling with inclusion of tube waves and other tube-wave-related arrivals", SEG TECHNICAL PROGRAM EXPANDED ABSTRACTS 2003, 1 January 2003 (2003-01-01), pages 2239 - 2242, XP055206544, DOI: 10.1190/1.1817793
- [A] VALERI KORNEEV ET AL: "Tube-wave monitoring of oil fields", SEG TECHNICAL PROGRAM EXPANDED ABSTRACTS 2006, 1 January 2006 (2006-01-01), pages 374 - 378, XP055206542, DOI: 10.1190/1.2370279
- See references of WO 2013151524A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2013151524 A1 20131010; AU 2012376236 A1 20140925; AU 2012376236 B2 20141113; CA 2867430 A1 20131010; CA 2867430 C 20180904; EP 2812662 A1 20141217; EP 2812662 A4 20150923; RU 2014136576 A 20160527; RU 2593687 C2 20160810; US 2015073714 A1 20150312
DOCDB simple family (application)
US 2012031788 W 20120402; AU 2012376236 A 20120402; CA 2867430 A 20120402; EP 12873752 A 20120402; RU 2014136576 A 20120402; US 201214389321 A 20120402